Apparatus for shaping plowshares



Feb. 21, 193 9. E. N.- CHILDS 2,147,882

APPARATUS FOR- SHAPING PLOWSHARES Filed Oct. 4, 1957 Patented Feb. 21,1939 APPARATUS FOR SHAPING PLOWSHARES Elmer N. Childs, Perry, IowaApplication October 4, 1937, Serial No. 167,242 2 Claims. (CI. 29-14)UNITED STATES PATENT OFFICE The object of my invention is to provide asimple, durable and inexpensive device to assist blacksmiths and othermechanics in the shaping and repointing of plowshares.

A further object of my invention is to provide in a device for shapingplowshares having an anvil member provided with a longitudinallyextending concaved upper surface for supporting the plowshare to beshaped, improved means for supporting the plowshare in operativeposition thereon and for shaping the same.

A further object of my invention is to provide a simple apparatus inwhich the plowshare may be placed in operative position and rigidlysecured thereto and when so secured, provide improved means for formingthe plowshare and in connection therewith means for supporting the noseportion of the plowshare and for aligning the said nose portion with theplowshare, whereby the plowshare may be properly formed to give thedesired suction.

A further object of my invention is to provide in a device of the typeabove described employing a forming anvil, improved means for clampingthe land side portion of the plowshare with the concaved portion of theanvil employed for giving the plowshare the proper longitudinalcurvature.

A further object of my invention is to provide in an apparatus forforming a plowshare employing a forming anvil, improved means forelevating one edge of the plowshare afterit has been formed, to permitthe plowshare to be more easily removed from the anvil by means of apair of tongs. J

My invention consists in the'construction, arrangement and combinationof the various parts of the device, whereby the objects contemplated areattained, as hereinafter more fully set forth, pointed out in my claims,and illustrated in the accompanying drawing, in which:

Figure 1 is a plan View of my improved apparatus showing a plowsharesupported thereon in dotted lines, a portion of the movable die beingbroken away to show a portion of the clamping means.

Figure 2 is an inverted side elevation of the same and a top view ofFigure 1.

Figure 3 is an end elevation of. my improved apparatus showing themanner in which the plowshare is clamped in position.

Figure 4 is a detail sectional view taken on the line 4-4 of Figure 1illustrating the forming die in its elevated or open position.

Figure 5 is a detail sectional view taken on the line 5-5 of Figure 1illustrating the manner in which the plowshare is automatically elevatedfrom the anvil.

Referring to the accompanying drawing, I have used the referencenumeralID to indicate what I 5 shall term a forming anvil, said anvilcomprising a horizontally arranged plate II having a downwardlyextending and transversely arranged flange l2 designed to form a lug orsupport at one end of the anvil. The opposite end of the anvil 10 isprovided with a head portion l3 which also serves as a support for theplate II, the head portion I3 having its outer end terminating in abeveled portion M, the said beveled portion being of the same angularityas that of the land 15 side portion of a plowshare relative to thelongitudinal axis of the share, so that the inner surface of the landside l5 of the plowshare It may be adjoined to said beveled portion withthe body of the plowshare supported longitudinally of the Q0 anvil. Theface of the beveled portion I5 is provided with a recess I! forreceiving lugs or other devices forming a portion of the inner face ofthe land side and for securing the same to the plow beam so as to permitthe inner face of the land side to firmly fit the said beveled face. Theupper surface of the anvil I0 is provided with a longitudinallyextending concaved groove or recess 18 extending the full length of theanvil, which concaved surface or recess is provided with alongitudinally extending groove I9, said groove l9 being designed toreceive a welt 2|] which is sometimes formed longitudinally on the undersurface of the, plowshare Hi When the cutting edge of the plowshare hasbeen electrically weld- I ,ed to the upper portion. This groove l9simply gives clearance for said welt so as to permit the back portion ofthe plowshare to be forced into contact with the concaved surface. Themember II is also provided with an opening 2| for re- 40 ceiving the lug22 or any other fastening device fixed to the back of the plowshare toassist in securingthe same to the mold-board of the plow so as to permitthe plowshare to properly fit the concaved portion as above described.45

For clamping the land side IS in contact with the beveled portion I4- Ihave provided a rod 23 slidably mounted in the member l3 with one end ofthe rod provided with an upwardly extending arm 24 designed to engagethe outer surface of the land side IS. The opposite end of the rod 23 isprovided with an eccentric or cam 25 having a handle 26. By thisarrangement the rod 23 may be moved to the left, as viewed in Figure 2,causing the member 24 to 55 Cal be moved toward the inclined face 14 andto engage the land side 15 and clamp the same in operative position,thus forming means whereby the plowshare will be aligned with theconcaved portion l8. A spring 21 is provided on the rod 23, having oneend against the member I2 and the other end against a collar 28, thusproviding means for automatically moving the arm 24 to open position.The under surface of the member II is provided with a downwardlyextending lug 29 for pivotally supporting a bell crank lever 38, one endof which is pivotally connected to a link 3|, which is in turn pivotallyconnected to the collar 28. The opposite end of the bell crank 30 ispivotally connected to the plunger 32 projecting upwardly through themember II and engaging the under surface of the upper edge of the shareIS in such a manner that as the rod 23 is moved to the right or to itsopen position, the plunger 32 will be moved upwardly causing the upperedge of the share 16 to be elevated in the manner illustrated in Figure5, thus providing means whereby the space will be formed between thesaid upper edge and the anvil to permit the upper edge of the plowshareto be grasped by means of a. pair of tongs, whereby the plowshare may beeasily removed from the anvil after it has been formed and while it isstill hot.

The outer end of the head I3 terminates in what I shall term a shoulderportion 33 projecting laterally from the face I, the top portion of theshoulder 33 being inclined between the points 34 and 35, as indicated inFigure 3, so that the pointed end of the land side IE will rest on saidinclined portion when the body of the plowshare is formed into theconcaved portion, the head member 33 also serving to support the noseportion of the plowshare and as an anvil on which the nose portion maybe sharpened or drawn out so that the angularity of the nose portionrelative to the body of the plowshare will be such as to give the propersuction to the plowshare when in operation. I

For forming the plowshare and giving it the proper curvature and forcingthe same into the concaved portion I have provided on the back edge ofthe anvil I0 hinge members 36 adapted to support the hinge members 31carried by the forming dye 38, the under surface of the die 38 beingconvexed to fit the upper surface of the plowshare when forced into theconcaved portion Ill. The die 38 is provided with a handle 38 by meansof which the said die may be operated, the under surface of the die 38being preferably formed with a layer of soft material 40, such ascopper, to prevent the scale formed on the upper surface of theplowshare from being forced into the plowshare while the same is hot, aswould be the case if said scale was engaged by a hard surface. The die38 is designed to substantially fit the upper surface of a plowshare,but short enough so that it does not cover the nose portion so that thenose portion may be hammered or drawn out while the die is in its closedposition, which also may serve as means for clamping the plowshare tothe anvil so that the nose portion may be 'bent to fit the formingshoulder 33, and at the same time hold the plowshare firmly against theconcaved portion and thus enable the operator to properly form the shapeof the nose portion relative to said share.

In the actual operation of the device the operator first moves the die38 to its elevated position, then places the hot plowshare on top of theanvil H with the land side 15 against the member M. The handle 26 isthen operated to clamp the land side in position and to align theplowshare with the anvil, after which the die 38 may be dropped to itsclosed position and forced downwardly, if necessary, to force theplowshare into the concaved portion. The die may then be immediatelyelevated unless it is desired to hammer the nose portion in shape, atwhich time the die may be held in its closed position. After the nosemember has been properly shaped the die may then be moved to its openposition and the clamp 24 released, causing the plunger 32 to beelevated and the upper edge of the plowshare to be elevated asillustrated in Figure 5.

Thus it will be seen I have provided a simple and efficient device,which is of cheap construction, provided with few moving parts, whichare not likely to get out of order, and which provides means whereby ablacksmith of ordinary skill can easily and quickly properly shape aplowshare and the nose portion carried thereby.

I claim as my invention:

1. An apparatus for forming plowshares, comprising an anvil having anelongated concaved upper surface, said surface being provided with arecess for receiving lugs formed on the under side of a plowsharesupported on said surface, the corner of one end of said anvil beingprovided with a diagonally supported shoulder portion for supporting thepointed end of the land side and its accompanying nose portion, said endhaving a recess for receiving lugs formed on the inner surface of theland side portion of said plowshare, means for clamping said land sideadjacent to said end to align the share with said concaved portion, andmeans for forming said share into said concaved portion.

2. An apparatus for forming plowshares, comprising a plate having itsupper surface concaved longitudinally and one end beveled against whichthe inner surface of a plowshare may be supported, said end having arecess for receiving lugs formed on the inner face of the land side ofsaid plowshare and a longitudinally and transversely protruding shoulderportion for supporting the nose of a. plowshare and the adjacent end ofthe land side of the plowshare, means for clamping the said land sideagainst said beveled portion, and means for forcing the plowshare intosaid concaved portion with its nose resting on said shoulder whereby theshare may be rigidly held and its nose hammered to produce a point ofthe desired shape.

ELMER N. CHILDS.

